Struct Entity 

pub struct Entity { /* private fields */ }

A lightweight entity identifier with generational indexing.

The generation field prevents use-after-despawn bugs: if an entity is despawned and its slot reused, the old Entity handle will fail is_alive checks because the generation won’t match.

Implementations

impl Entity

pub fn from_raw(index: u32, generation: u32) -> Self

Reconstruct an Entity handle from its raw index and generation.

This is intended for the WASM bridge where JS passes back an entity ID that was previously returned by spawn. The caller is responsible for providing a valid (index, generation) pair — passing stale or fabricated values is safe but will cause is_alive / get to return None.

pub fn index(self) -> u32

Returns the index portion of this entity ID.

pub fn generation(self) -> u32

Returns the generation portion of this entity ID.

Trait Implementations

impl Clone for Entity

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Entity

impl Debug for Entity

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Entity

impl Hash for Entity

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Entity

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Entity